*{
	margin: 0;
	padding: 0;
	font-size:12px;
	font-family: "微软雅黑";
	box-sizing: border-box;
}
.clearfix:after{
	clear: both;
	content: "";
	height: 0;
	display: block;
	visibility: hidden;
}
.clearfix{
	*zoom:1;
}
a{
	text-decoration: none;
}
ul,li{
	list-style: none;
}
.lf{
	float: left;
}
.rt{
	float: right;
}